当安装android sdk工具时,会产生以下错误:
java.lang.NoClassDefFoundError: javax / xml /绑定/注释/ XmlSchema
为什么会发生这种情况,如何解决?
调试输出:
$ java --version
java 9
Java(TM) SE Runtime Environment (build 9+181)
Java HotSpot(TM) 64-Bit Server VM (build 9+181, mixed mode)
$ brew cask install android-sdk
==> Caveats
We will install android-sdk-tools, platform-tools, and build-tools for you.
You can control android sdk packages via the sdkmanager command.
You may want to add to your profile:
'export ANDROID_SDK_ROOT=/usr/local/share/android-sdk'
This operation may take up to 10 minutes depending on your internet connection.
Please, be patient.
==> Satisfying dependencies
==> Downloading https://dl.google.com/android/repository/sdk-tools-darwin-3859397.zip
Already downloaded: /Users/tomasnovella/Library/Caches/Homebrew/Cask/android-sdk--3859397,26.0.1.zip
==> Verifying checksum for Cask android-sdk
==> Installing Cask android-sdk
==> Exception in thread "main"
==> java.lang.NoClassDefFoundError: javax/xml/bind/annotation/XmlSchema
==> at com.android.repository.api.SchemaModule$SchemaModuleVersion.<init>(SchemaModule.java:156)
==> at com.android.repository.api.SchemaModule.<init>(SchemaModule.java:75)
==> at com.android.sdklib.repository.AndroidSdkHandler.<clinit>(AndroidSdkHandler.java:81)
==> at com.android.sdklib.tool.SdkManagerCli.main(SdkManagerCli.java:117)
==> at com.android.sdklib.tool.SdkManagerCli.main(SdkManagerCli.java:93)
==> Caused by: java.lang.ClassNotFoundException: javax.xml.bind.annotation.XmlSchema
==> at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:582)
==> at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:185)
==> at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:496)
==> ... 5 more
Error: Command failed to execute!
==> Failed command:
/usr/local/Caskroom/android-sdk/3859397,26.0.1/tools/bin/sdkmanager tools platform-tools build-tools;26.0.1
==> Standard Output of failed command:
==> Standard Error of failed command:
Exception in thread "main" java.lang.NoClassDefFoundError: javax/xml/bind/annotation/XmlSchema
at com.android.repository.api.SchemaModule$SchemaModuleVersion.<init>(SchemaModule.java:156)
at com.android.repository.api.SchemaModule.<init>(SchemaModule.java:75)
at com.android.sdklib.repository.AndroidSdkHandler.<clinit>(AndroidSdkHandler.java:81)
at com.android.sdklib.tool.SdkManagerCli.main(SdkManagerCli.java:117)
为Windows用户寻找解决方案
选项1在Android Studio SDK管理器中安装cmdline-tools
选项2从这个链接下载https://developer.android.com/studio#cmdline-tools
然后按照下面的教程来设置它
https://www.youtube.com/watch?v=wvi03sOBKWQ
接下来将cmdline-tools安装的路径复制到bin文件夹中
使用Android Studio SDK管理器
cmdline-tools安装在Android SDK Location下
例子:
C:\Users\ %用户名% \ AppData \当地\ Android最新\ Sdk \ cmdline-tools \ \ bin
然后将该路径粘贴到环境变量路径中
控制面板>设置“查看路径”为“大图标”>系统>在右侧的“相关设置”下选择“高级系统设置”>环境变量
从这里开始,在“系统变量”下添加路径
确保cmdline-tools路径在tools路径(在图中红色框中突出显示)的上方。
选择路径>编辑>选择cmdline-tools路径(蓝色部分)>上移
我也有这个错误
Exception in thread "main" java.lang.NoClassDefFoundError: javax/xml/bind/annotation/XmlSchema
at com.android.repository.api.SchemaModule$SchemaModuleVersion.<init>(SchemaModule.java:156)
at com.android.repository.api.SchemaModule.<init>(SchemaModule.java:75)
at com.android.sdklib.repository.AndroidSdkHandler.<clinit>(AndroidSdkHandler.java:81)
at com.android.sdklib.tool.sdkmanager.SdkManagerCli.main(SdkManagerCli.java:73)
at com.android.sdklib.tool.sdkmanager.SdkManagerCli.main(SdkManagerCli.java:48)
Caused by: java.lang.ClassNotFoundException: javax.xml.bind.annotation.XmlSchema
at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:582)
at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:190)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:499)
... 5 more
然后不再卸载最新的Java环境(在我的例子中是Java 13)
安装Java 8,
我已经完成了以下步骤
打开android studio >进入配置>选择SDK管理器>进入SDK工具>勾选android SDK命令行工具>应用>并等待安装
重新启动命令行工具
输入命令颤振医生
输入命令flutter doctor——android-licenses
并输入y来接受所有的许可。
奇怪的是,Java9与android-sdk不兼容
$ avdmanager
Exception in thread "main" java.lang.NoClassDefFoundError: javax/xml/bind/annotation/XmlSchema
at com.android.repository.api.SchemaModule$SchemaModuleVersion.<init>(SchemaModule.java:156)
at com.android.repository.api.SchemaModule.<init>(SchemaModule.java:75)
at com.android.sdklib.repository.AndroidSdkHandler.<clinit>(AndroidSdkHandler.java:81)
at com.android.sdklib.tool.AvdManagerCli.run(AvdManagerCli.java:213)
at com.android.sdklib.tool.AvdManagerCli.main(AvdManagerCli.java:200)
Caused by: java.lang.ClassNotFoundException: javax.xml.bind.annotation.XmlSchema
at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:582)
at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:185)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:496)
... 5 more
将所有命令合并为一个命令,以便于参考:
$ sudo rm -fr /Library/Java/JavaVirtualMachines/jdk-9*.jdk/
$ sudo rm -fr /Library/Internet\ Plug-Ins/JavaAppletPlugin.plugin
$ sudo rm -fr /Library/PreferencePanes/JavaControlPanel.prefPane
$ /usr/libexec/java_home -V
Unable to find any JVMs matching version "(null)".
Matching Java Virtual Machines (0):
Default Java Virtual Machines (0):
No Java runtime present, try --request to install
$ brew tap caskroom/versions
$ brew cask install java8
$ touch ~/.android/repositories.cfg
$ brew cask install android-sdk
$ echo 'export ANDROID_SDK_ROOT="/usr/local/share/android-sdk"' >> ~/.bash_profile
$ java -version
java version "1.8.0_162"
Java(TM) SE Runtime Environment (build 1.8.0_162-b12)
Java HotSpot(TM) 64-Bit Server VM (build 25.162-b12, mixed mode)
$ avdmanager
Usage:
avdmanager [global options] [action] [action options]
Global options:
-s --silent : Silent mode, shows errors only.
-v --verbose : Verbose mode, shows errors, warnings and all messages.
--clear-cache: Clear the SDK Manager repository manifest cache.
-h --help : Help on a specific command.
Valid actions are composed of a verb and an optional direct object:
- list : Lists existing targets or virtual devices.
- list avd : Lists existing Android Virtual Devices.
- list target : Lists existing targets.
- list device : Lists existing devices.
- create avd : Creates a new Android Virtual Device.
- move avd : Moves or renames an Android Virtual Device.
- delete avd : Deletes an Android Virtual Device.